This listing is for new Zinc Plated Steel Flat Washers. These are to DIN 125 A / ISO 7089 specifications. Class 10.9 / Grade 8 with a 200 HV (hardness) rating and CR+3 Zinc plating. Available sizes : 3mm (M3), 4mm (M4), 5mm (M5), 6mm (M6), 8mm (M8), 10mm (M10), 12mm (M12) Specification sheet for each item below: